Cotton-gin.



PATBNTED JULY 10, 1906.

W. F. OVERMYER.

COTTON GIN.

APPLICATION FILED SEPT.11,1905.

Attorneys @MTE sfrafrns earner operon.,

Specification of Letters Patent.

Patented :fury 1o, rece,

Application filed September 11, 1905. d Serial No. 277,938.

To @ZZ whom t may concern:

Be it known that I, WrLLIAM F. Ovnn- MYER, a citizen of the United States, residino at Beechwood, inthe county of Amite and State of Mississippi, have invented a new and useful Cotton-Gin, of which the following is a specification.

With these and other ends in view, which will readil f appear as the nature of the invention is betterunderstood, the same consists in the improved construction and novel arrangement and combination oi parts, which will he hereinafter fully described, and particularly pointed out in the ,claims In the accompanying drawin's has been illustrated a simple and preferredzforrn oi the invention, it being, however,undcrstood that no limitation is necessarily made to the precise structural details therein -v exhibited, but that changes, alterations, and modicaticns within the scope of the invention may be made when desired.

In the said drawings,` Figure l is a vertical sectional view taken longitudinallyr through a machine constructed in accordance with the prinoiplesof the invention. Fig. 2 is a sec-v y into which the seed-cotton or material that is to be operated upon is fed in any suitable convenient manner, the bottom of said feed-box being prowided with a slot 9, -in which the spiked roller is located and through which the teeth of saidroller may o crate. The shafts 4 and 5 are the upper an lower saw-carrying shafts, each of which is equipped with saws 10, of ordinary construction.

saws upon the upper shaft are separated from the feed-box by a partition '11, extending downwardly and terminatin at a distance from 'the bottom of the ieedox. ln the space between the lower end of the partition 11 and the bottom. of the feed-box is pivotcd a curved seed-board 12, said boardbeing pivoted upon a transverse pin or shaft 13, which is located slightly in advance of the partition ll and the lower edge of said seed-board being extended almost within reach oi the teeth 14 upon the spiked roller and in the direction of the V eripheries of the saws upon the lower saws raft.

' The casin of the machine-includes a crossbrace 15, w 1'ch is located in front of the lower extremities of the lower saws, and said cross-brace serves for the attachment ci the lower ends of the ribs 16, constituting the breast, the upper ends of said, ribs being connected with t e lower end oi the partition 1l. The upper ends of the ribs are curved approximatcl sernicircularly, as shown at l?, said curve portions enga ing between the saws upon the shafts 4 an 5 and extending rearwardly between the axes of the shafts and beyond a plane connecting the axes, the lower portions 18 of the ribs being extended downwardly between `the lower saws and made fast to the cross-piece l5. The curved portion 17 of the ribs 'cooperates with the curved seed-board 12 to form' the roll-chamber 18.

The shaft 6 supports a brush-cylinder i9,

-the lbristles oi which operate to remove the lint from both sets of saws, the lint being' blown into the lint-iiue 20, adjacent to the lower end-oi which is the mote-hoerd 2i, which is supported for longitudinal adjust ment inthe sides of the casing, each ofv which is provided with. a slot 22ior this p The` mote-board, which may be constituting the lower extremity ward extension of the lint-ilus, has at its front edge an upwardly-inclined -iiange 23,-

over which the lint is guided to the iiue.

The interior oi the casing is provided with suitably-disposed wind-boards 24 for the purpose of preventing air from circulating with the brush-cylinder when the latter in operation is rotated at a high speed.

The operation and advantages of this in:

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2o erly shaped to support the roll and 3o lower ends of the ribs beneath 'tl the spiked roller, the saws,and the brush-cyliw der are rotated in the direction indicated by arrows, the spiked roller hein? operated at moderate speed, the saws at the usual high 5 speed, and the brush-cylinder at a speed exeeeding that of the saws,

jfrom which, in the ,tisual manner, it serves to4 detach the lint. EVlhen the seed-cotton 'fed into the fcntl-boit` reaches the lower end of said box, it is laid ro hold of by the spiked cylinder and carried into engagement with the lower saws, wherehyit is carried upward and into the roll-chamber 1b' the lower saws detaclling a portion ot' the lint. As the feeding of material is con- 5 tinued a roll is formed within the chamber 18, where it is rotated by the action of the two sets-of saws in the direction. indicated by an arrow, the curved seed-hoard l2 affording a supporting means which is smooth and propto enable it to be freely and continuously retained by the action of the saws of both sets, which gradually strip the lint from the seeds, being themselves denuded of the lint by thev rotaia' v brush. As long as lint adheres to theseeds they will l when they will slide over the lower ed hoard, between the lower saws hoard, the upper edge ol' which is so spaced from the breastand from the partition l l that an o )ening or passagel 25 remains, through which cotton may pass into the roll-chamber and thence into engagement with the saws.

4o, The pivoted seed-board may be manipulated by a handlel 26, connected therewith.

lThe operation of this machine is continuous, and the feeding of cotton may be kept without intermission, discretion being course exercised as to the rapidity with which the cotton is fed. lt will be observed that the upper and lower sets of saws will op- ',erate upon the cotton-roll in precisely the same manner and that the capacity of the 5o machinewill be practically double that of machines equipped with only bnc set of saws. This is considered of extreme importance, not only inasmuch as it ell'eets a large saving in the cost of machinery, but also in the space reipiired for the accommodation thereof.

{aving thus described the invent ion, what is clainu-id is Y Y- l. ln a cotton-gin, a easingliaving a feedhopper, a spiked roller supported for rotation 6o in the bottom of said hopper, upper and lower saws, carryiiig-shafts therefor supported for rotation in rear of the hopper, a partition separating the saws upon the upper shaft from the hopper' and extending"downwardly in front of' the said upper saws., and a seed-board ses,

l supported pivotally between the lower edge@ of said partition and the spiked roller and separa ted from the partition by a passage through which seed-cotton can feed directly to tie i saws. y

2. vln a cotton-gin, a feed-box, two sets of' saws .lisposed one above the other in rear of seed-board constituting a portion of the rear wall of the hopper, and a breast composed of substantially semicirciilar ribs having their curved portions extending between the saws of both sets to a point at the rear of the plane connecting their axes and co'iperating with the seed-board to forni a roll-chaniher between the two sets of saws.

la. Vln a eottoli-gin, a plurality of sets of saws, a breast comprising ribs having curved portions extending between the saws of the several sets and into the space between the axes of rotation of the saws, a feed-ho )per in front of the saws, a-curved seed-board operating in-mnjunction with the ribs constitutingr the breast. to form a substantially cylindricalroll-chamber located in i'rontof and between the sets of saws, and a spiked roller supported for rotation in the bottom of thefeedhopper and operating to carry the contents of the latter downward ly andrearw ardl y into engagement with the lower set of' saws.l

4. In a cotton-gin, a plurality of sets of saws, a feed-hopper in front of the saws, a ginhreast and a seed-hoard forming a rollehainber independent of the hopper and l0- eated between the sets of saws, means for carrying the contents of the feed-hopper in a downward an(lp'earward direction into engagement with the lowermost set of saws and thence. into the roll-chamher to heaetedupon by botla sets of saws, a cylindrical rotary brush engaging the several set-s of saws, and a lint-flue. i 5. ln a eotton-gin, two sets of saws arranged in non-interlappingrelation, n feedhopper in front of thorn, a partition between thehopper and one of the sets, a gin-breast comprising ribs seeiired at their upper ends to l WLLIAM F. OVERMYER.

l lvitnesses':

Je R. LINDSAY,

l J. M'. SMrrH.

said feed-box, a pivotally-supported curvedl the partition and curved therefrom rear- IDO IOS

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